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SSD Storage: 2018 in review

anandtech.com

101–110 of 131 posts

Re: SSD Storage: 2018 in review

#101

Earlier quoted context omitted.

https://www.amazon.com/Samsung-970-PRO-Internal-MZ-V7P1T0BW/... -- $439, 1TB.

Things really have changed over the years. I used to shop in the US and bring everything back with me to Europe because computer parts were half the price. Now I'm thinking about doing the reverse[0] (240€ for the same NVMe SSD over here). [0]: https://www.amazon.de/gp/product/B07CGJNLBB/ref=ppx_yo_dt_b_...

It's not the same product: 970 PRO vs 970 EVO.

Re: SSD Storage: 2018 in review

#102
post #91
post #11

Earlier quoted context omitted.

At the SSD level, the drives are actually doing block management, not file management. You still need a filesystem to store metadata, manage the layout of the data, etc. An example of something that a SSD's controller does that the operating system/filesystem doesn't have to worry about is managing bad blocks. If the SSD detects a bad block, it will replace it with a working block and update the data used by its flas…

> This is completely opaque to the operating system; as far as it knows its underlying storage works exactly the same (until there are so many bad blocks that the drive can't keep up this convenient deception). Is there a way for the drive to tell the fs that a block is bad? Or does the drive simply keep a bunch of blocks apart just in case?

Hard drives and SSDs both keep a pool of spare blocks so that they can remain functional after having to retire some defective blocks from use. This spare pool tends to be much larger for SSDs. Ordinary IO doesn't convey anything about whether a block had to be retired in the process, but there are SMART indicators that track this stuff.

Re: SSD Storage: 2018 in review

#103

Earlier quoted context omitted.

solid state NAS not not laughable, just expansive. RAID 10 a few NVME and you can get decent throughput (and storage size) with existing technology.

NVMe SSDs only significantly increase bandwidth, but not random throughput. Unless you have a 40gbit network you're not going to see the difference between one NVMe SSD or two if you're accessing them over the network.

I do everything baremetal, and my servers are a few extra (and quite decent) NICs for direct connection to eachother so that no even switches or routers bring their overhead

Re: SSD Storage: 2018 in review

#104

Earlier quoted context omitted.

> RAID 10 a few NVME and you can get decent throughput (and storage size) with existing technology. is there a good reason to do this in a consumer setup? max realistic throughput over gigabit ethernet is only ~120MB/s, which can easily be saturated by sequential reads or writes to/from a single modern spinning-rust drive.

My NAS has 3x 1gbit Ethernet ports

10Gb ports are quite cheap as well especially if you're only going point to point (the switches are still a little pricy, but the ports for a NAS to VM host are easily under $100 now).

Re: SSD Storage: 2018 in review

#105
post #75

Earlier quoted context omitted.

I had planned on doing this but even with gigabit wifi, and half gigabit transfer speeds for the SSD, NAS encryption algorithms seems to cap the transmission speeds to around 100 megabytes per second I have all the parts I just haven't formatted my SSDs to go into the NAS yet and I'm not sure if I will

Even if the throughput is no better, SSDs will have much better latency and IOPS.

Not to mention sheer storage density that has already far outpaced spinning disks (just not at an affordable price, yet): https://www.theverge.com/circuitbreaker/2018/2/20/17031256/w...

This thing is 30TB in 2.5" format, while the largest capacity HDD I can remember hearing about is 15TB, and that's in a 3.5" format, which is about double in physical volume and weight.

I can't wait for the day when something like this becomes economical, so I can stick two of them in a compact portable NAS for 30TB of redundant storage that I can bring with me anywhere.

Not to mention, SSDs on average seem to have more predictable failure modes that scale based mostly on usage, and tend to be overall more reliable than HDDs that can often suddenly die on you with no warning.

Re: SSD Storage: 2018 in review

#106
post #34

Earlier quoted context omitted.

Meanwhile Apple is charging $1,200 for a 1 TB MacBook upgrade. Hoping this year we see a significant jump in consumer availability of these drives. I’ve been using a 512gb laptop since 2010 at least. Would be nice to start seeing multi-terrabyte drives in devices besides after market or external drives.

> Meanwhile Apple is charging $1,200 for a 1 TB MacBook upgrade. This is specifically one of the reasons I ended up switching to a Lenovo Thinkpad X1 Yoga, even though I'd planned to buy the new MacBook Air. The Thinkpad's SSD is officially user-replaceable and I bought a 2TB WD Blue SSD for less than a third of the cost of Apple's upgrade. Even an NVMe SSD would have been half the price of Apple. One caveat is that…

Thus, one of the many reasons why you'll pay less for non-Apple computers.

Re: SSD Storage: 2018 in review

#107
post #34

Earlier quoted context omitted.

Meanwhile Apple is charging $1,200 for a 1 TB MacBook upgrade. Hoping this year we see a significant jump in consumer availability of these drives. I’ve been using a 512gb laptop since 2010 at least. Would be nice to start seeing multi-terrabyte drives in devices besides after market or external drives.

> Meanwhile Apple is charging $1,200 for a 1 TB MacBook upgrade. This is specifically one of the reasons I ended up switching to a Lenovo Thinkpad X1 Yoga, even though I'd planned to buy the new MacBook Air. The Thinkpad's SSD is officially user-replaceable and I bought a 2TB WD Blue SSD for less than a third of the cost of Apple's upgrade. Even an NVMe SSD would have been half the price of Apple. One caveat is that…

At the end of the day if you're buying apple for the hardware you were doing something wrong to begin with. MacOS is one of the few good reasons to get apple products, otherwise it should be a given that you get an alternative device. Combine this with the fact that Apple has made it impossible to get stuff repaired, and what you've just said, I don't see why anyone would buy an apple laptop for the hardware alone.

Re: SSD Storage: 2018 in review

#108
post #101

Earlier quoted context omitted.

Things really have changed over the years. I used to shop in the US and bring everything back with me to Europe because computer parts were half the price. Now I'm thinking about doing the reverse[0] (240€ for the same NVMe SSD over here). [0]: https://www.amazon.de/gp/product/B07CGJNLBB/ref=ppx_yo_dt_b_...

It's not the same product: 970 PRO vs 970 EVO.

Another shop:

https://www.alza.de/samsung-970-pro-1tb-d5319060.htm

276,47 EUR w/o VAT, 329 EUR with VAT. Currently, that's some 377 USD.

Re: SSD Storage: 2018 in review

#109

Earlier quoted context omitted.

99% of the time SSDs are a boolean: "Do you have a SSD? Yes/No" and performance between different SSDs is basically unnoticeable. Change my mind

> performance between different SSDs is basically unnoticeable Spinning rust drives will likely give you up to ~110 MB/sec. A SATA SSD will likely give you to up ~550 MB/sec, a 5x increase. An NVMe SSD will double the write and quadruple the read speed of a SATA SSD, in 1/3 the size. Yes, any SSD is likely good enough for your average user to feel like a computer is fast. If anything you do is even remotely heavy on…

Downvotes, for the speeds of various storage media?

Well done HN, just when I thought you couldn't get more ridiculous, you one upped yourself again.

Re: SSD Storage: 2018 in review

#110
post #24

Earlier quoted context omitted.

Not _quite_ consumer, but we run a QNAP TES-3085U at work. Fully populated with 24 x 4tb EVO drives ends up being way faster and cheaper than our spindle based EMC. (although less reliability since it won't survive a cpu failure).

How does it work out cheaper? Is this DIY vs a product?

EMC is basically the Oracle of network storage, so it's presumably more like "hyper-converged infrastructure" vs. "NAS box".
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